| Copper(II) arsenate | |
|---|---|
| IUPAC name |
|
| Other names | Copper arsenate |
| Identifiers | |
| CAS number | [] |
| PubChem | |
| Properties | |
| Molecular formula | Cu3(AsO4)2 |
| Molar mass | 468.48 g/mol |
| Appearance | blue or bluish green powder |
| Density | 5.2 g/cm3 |
| Melting point |
1100 °C |
| Solubility in water | insoluble |
| Solubility | soluble in ammonia, dilute acids |
| Hazards | |
| EU Index | Not listed |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
|
Copper arsenate (Cu3(AsO4)2.4H2O, or Cu5H2(AsO4)4.2H2O), also called copper orthoarsenate or tricopper arsenate or tricopper orthoarsenate, is an insecticide used in agriculture. It is also used as a herbicide, fungicide, and a rodenticide. It is a blue or bluish-green powder insoluble in water and alcohol and soluble in aqueous ammonium and dilute acids. Its CAS number is [] or [].
Copper arsenate hydroxide or basic copper arsenate (Cu(OH)AsO4) is a basic variant with CAS number []. It is found naturally as the mineral olivenite. It is used as an insecticide, fungicide, and miticide. Its use is banned in Thailand since 2001.[1]
Copper arsenate is also used as a poison in slug baits.
Copper arsenate can also be a misnomer for copper arsenite, especially when meant as a pigment.
See also
- Lead arsenate
- Calcium arsenate
- Paris Green (copper arsenate-acetate)
- Chromated copper arsenate
- Scheele's Green (copper arsenite)
External links
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